CVE-2026-32256 HIGH

CVE-2026-32256: music-metadata has an infinite loop vulnerability in ASF parser

Vendor Borewit
Product music-metadata
Weakness CWE-835
Published March 18, 2026
Last update March 18, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

music-metadata is a metadata parser for audio and video media files. Prior to version 11.12.3, music-metadata's ASF parser (`parseExtensionObject()` in `lib/asf/AsfParser.ts:112-158`) enters an infinite loop when a sub-object inside the ASF Header Extension Object has `objectSize = 0`. Version 11.12.3 fixes the issue.

Key dates

02Disclosure timeline

March 18, 2026 CVE published
March 18, 2026 Record updated